How to use
- Enter a number.
- Pick from/to bases.
- See the result.
FAQ
Does hex letter case matter?
A–F is case-insensitive on input; output is usually unified to uppercase for readability.
Can it convert negative numbers?
Currently non-negative integers only; negatives involve sign and two's-complement conventions that differ by context.
How do I convert binary to hex quickly?
Group every 4 bits into 1 hex digit (1111 = F); convert directly without going through decimal.
How do I read a hex color like #FF0000?
RRGGBB: each pair is one hex channel for red/green/blue; use the color tool for color work, but the values check out here.
Can it handle decimals or floats?
This version focuses on integers; fractional base conversion is more involved — use a calculator or dedicated tool.
Is octal still used?
Rarely daily, but some systems (e.g. Linux file permissions like 755) and older languages still use octal; watch leading-zero conventions.
About this Base Converter
Standard base conversion for non-negative integers. Local only.